Merge pull request #8742 from MicrosoftDocs/dsierman-patch-3

Update timeline FAQs

Author: Mattp123

powerapps-docs/maker/model-driven-apps/faqs-timeline-control.md

@@ -1,31 +1,55 @@
 ---
-title: "FAQs for timeline control (section) in Power Apps | MicrosoftDocs"
-description: "FAQs for timeline control (section) in Power Apps"
-ms.date: 09/10/2021
-
+title: "FAQs for timeline control in Power Apps | MicrosoftDocs"
+description: "Frequently asked questions (FAQs) for the timeline control in Power Apps"
+ms.date: 10/05/2023
 ms.topic: troubleshooting
 author: "lalexms"
-ms.assetid: 7F495EE1-1208-49DA-9B02-17855CEB2FDF
 ms.subservice: mda-maker
 ms.author: "laalexan"
+contributors:
+- dsierman
 search.audienceType: 
   - maker
 ---
+# FAQs for the timeline control
 
-# FAQs for timeline control (classic)
+## A command isn't working. How do I use the command checker tool for timeline?
 
+For instructions about how to enable and use the command checker, go to  [Troubleshooting ribbon issues in Power Apps](/troubleshoot/power-platform/power-apps/create-and-use-apps/ribbon-issues)
 
+If an error dialog box displays "We can't compete the action you've selected" when trying to use the command action for activities on a timeline, it might be that the command action is hidden by custom rules. You can confirm by checking if the same action is hidden from **Related** > **Activities**.
 
-There aren't currently any FAQs. As new FAQs are raised, we will update this topic.
+:::image type="content" source="media/related-activities.png" alt-text="Go to related activities in the timeline":::
 
+From the **Activities** tab, select the same activity that you want to perform the action on, and then check if you can perform the same command action from there.
 
-## See also
+:::image type="content" source="media/select-related-activity.png" alt-text="Select the related activity that you want":::
 
-[Set up timeline control](set-up-timeline-control.md)
+If the command action works here but not from the timeline, contact [Microsoft Support](/power-platform/admin/get-help-support).
+
+If you can't find the command action from the related activity grid, you can further troubleshoot the issue with [command checker](https://powerapps.microsoft.com/en-us/blog/introducing-command-checker-for-model-app-ribbons/) to find out which custom rule hides the command.
+
+1. Play the model-driven app that has the timeline.
+1. From a table record that displays the timeline, select **Related** > **Activities** to go to the **Open Activity Associated View**.
+1. Enable the command checker tool by appending the `&ribbondebug=true` parameter to the app URL.
+
+   :::image type="content" source="media/command-checker-url-param.png" alt-text="Append URL parameter to add command checker":::
+
+1. Select the **Command checker** command, which now appears on the app command bar. It might be listed on the **More** overflow flyout menu.
 
-[Timeline section in the Customer Service Hub app](/dynamics365/customer-service/customer-service-hub-user-guide-basics#timeline)
+   :::image type="content" source="media/start-command-checker.png" alt-text="Start command  checker":::
 
-[Add an appointment, email, phone call, note, or task activity to the timeline](../../user/add-activities.md)
+1. From the command checker page that is displayed, select **Group Id: Mscrm.SubGrid.activitypointer.MainTab.Actions**, select a hidden command such as **Mark Complete (hidden)**, and then select the **Command properties** tab on the right to find out what custom rules are used to hide the command action.
+
+   :::image type="content" source="media/find-group-id.png" alt-text="Find group ID":::
+
+> [!NOTE]
+> The timeline always displays command actions without honoring the custom rules to hide or disable the command button for performance reasons.
+
+## See also
+
+[Set up timeline control](set-up-timeline-control.md)
 
+[Use the timeline control](../../user/add-activities.md)
 
 [!INCLUDE[footer-include](../../includes/footer-banner.md)]